Poly(ether imide)/Epoxy Foam Composites with a Microcellular Structure and Ultralow Density: Bead Foam Fabrication, Compression Molding, Mechanical Properties, Thermal Stability, and Flame-Retardant Properties

doi:10.1021/acsomega.0c03072

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2020专题

	Poly(ether imide)/Epoxy Foam Composites with a Microcellular Structure and Ultralow Density: Bead Foam Fabrication, Compression Molding, Mechanical Properties, Thermal Stability, and Flame-Retardant Properties
	Jiang, Junjie ; Feng, Weiwei ; Zhao, Dan ; Zhai, Wentao
刊名	ACS OMEGA
	2020
卷号	5 期号:40 页码:25784-25797
关键词	SUPERCRITICAL CARBON-DIOXIDE POLY(LACTIC ACID) INDUCED CRYSTALLIZATION POLYMERIC FOAMS POLYPROPYLENE BEHAVIOR CO2 BLENDS
DOI	10.1021/acsomega.0c03072
英文摘要	It is challenging to prepare ultralow-density microcellular foams based on high-performance polymers due to their low gas solubility and rigid polymer matrix. In this study, by applying microcellular foaming technology using CO2/acetone as the blowing agent, ultralow-density poly(ether imide) (PEI) bead foams with an expansion ratio of 30-56 times and cell density of 10(7)-10(9) cells/cm(3) were fabricated, resulting from the enhanced plasticization effect of the mixed fluid. The slow diffusivity of acetone at room temperature ensured the saturated PEI beads to foam after desorption for more than 6 days, which potentially reduces the transportation cost of PEI bead foams significantly. A novel compression molding process was developed to prepare the molded PEI bead foams (MPEIs) using epoxy as a coating agent. The good infiltration character of epoxy on bead foams endowed the MPEIs with excellent mechanical properties, together with an ultralow density of 80-200 kg/m(3), long-term dimensional stability at 160 degrees C, and excellent flame-retardant properties of VO rating. These features made the MPEIs very promising for many advanced applications.
学科主题	Chemistry
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/20420]
专题	2020专题
作者单位	1.Zhao, D 2.Zhai, WT (corresponding author), Sun Yat Sen Univ, Sch Mat Sci & Engn, Guangzhou 510275, Peoples R China.
推荐引用方式 GB/T 7714	Jiang, Junjie,Feng, Weiwei,Zhao, Dan,et al. Poly(ether imide)/Epoxy Foam Composites with a Microcellular Structure and Ultralow Density: Bead Foam Fabrication, Compression Molding, Mechanical Properties, Thermal Stability, and Flame-Retardant Properties[J]. ACS OMEGA,2020,5(40):25784-25797.
APA	Jiang, Junjie,Feng, Weiwei,Zhao, Dan,&Zhai, Wentao.(2020).Poly(ether imide)/Epoxy Foam Composites with a Microcellular Structure and Ultralow Density: Bead Foam Fabrication, Compression Molding, Mechanical Properties, Thermal Stability, and Flame-Retardant Properties.ACS OMEGA,5(40),25784-25797.
MLA	Jiang, Junjie,et al."Poly(ether imide)/Epoxy Foam Composites with a Microcellular Structure and Ultralow Density: Bead Foam Fabrication, Compression Molding, Mechanical Properties, Thermal Stability, and Flame-Retardant Properties".ACS OMEGA 5.40(2020):25784-25797.